The host is installed with Apple Mac OS X or Server 10.8.5, 10.9.5 or 10.10.x through 10.10.3 and is prone to a security bypass vulnerability. A flaw is present in the application, which does not properly set refresh rates for DDR3 RAM. Successful exploitation allows attackers to conduct row-hammer attacks, and consequently gain privileges or cause a denial of service (memory corruption).